I have page that works ok on localhost, but it throws an error on server. This pages was working ok before until I added additional grid to updatePanel. Is there any limit how many grids you can have in updatePanel. The error message is below.

Message: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500Line: 4723Char: 21Code: 0

I have setup my website (ASP.NET 3.5) with AJAX, running with no problems at all.

When I test my website locally and on my main top level domain, there are no problems.

When I'm on a subdomain page, AJAX client side framework fails to load. I observed the problem deeply and found that whenever I'm on a subdomain page, WebResource.axd DOES load but ScriptResource.axd DOESN'T load (returns 404 Not Found error). I think I should modify some entries at web.config file, but I have no idea on what to do?

I have a site that uses the Ajax Control Toolkit that's been running for several weeks and a week ago all of a sudden users are seeing script errors. I'm getting 'Sys' is undefined errors, as well as 'object required' and other JavaScript exceptions. The site does not function because of this.

I checked the page source and looked for the WebResource.axd and ScriptResource.axd's and tried navigating to them directly by putting the URL in the browser. I got a 404 error - file not found. If I do the same in our test environment, it comes back and asks me if I want to save or open the file. If I open it, I see the JavaScript that I am expecting (from the Ajax Control Toolkit).

In our test environment, with the same code, everything works fine. This tells me there was something on the production server that's preventing this from working. About 4 days before this started happening, we found that some user documentation (PDF) wasn't being protected by Forms Authentication (we need only legitmate users having access to it) so we added a wildcard mapping in IIS with "verify that file exists" was unchecked, knowing that if it were checked, we'd have this problem. I had one of the network admins check this setting after this started happenig and he said that it was still unchecked. I asked him to remove the wildcard mapping altogether and I still see the same behavior.

I am certain that this isn't a coding problem; again, as it went through the QA process in our test environment, everything works perfectly. And after the last deployment to production three weeks ago, everything was perfect as well. We added the wildcard mapping (which shouldn't have had an effect) and four days later the site breaks. I've asked our IT department if any changes were made to the server recently and nobody says they did.

What settings does anyone know of that might be causing this, either server or application? I checked the web.config and all the sections are there that deal with the ScriptResource HttpHandler and HttpModules. In fact, the web.configs are identical between the production and test environment, so I know it hasn't been tampered with.

Sys.webForms.pagerequestManagerserverErrorException: A network related or instance- specific error occurred while establishing a connection to sql server.The server was not found or was not accessible.Verify that the instance name is correct and that sql Server is configured to allow remote connection Provider SQL Network Interface Error:26- Error Locating Server/Instance specified

ScriptResource.axd:938Uncaught Sys.WebForms.PageRequestManagerServerErrorException: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500That ScriptResource.axd refers to MicrosoftAjaxWebForms.debug.jsI'm googling the issue from hours but I've still has no idea about how it occurs. Weird thing is I do not get any error, but another user of the system most of the time gets this error. -and we both use same web browser.2/3 places where she gets this error, I used Response.Redirect() with a button.

I am getting this error message (in IE) when i click on any of the menu items used in my code, i pasting my code here, please review it and suggest me the corrections, i have tried reading other similar articles which mentioned increasing maxReuestLength(<httpRuntime maxRequestLength="8192" />) but it hasn't solved my problem.

I am using Ajax Combobox's in my application. The controls are re-created dynamically on page_load after postback. But I keep receiving this error when selecting an item from the ajax combobox when i run the application.Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Script controls may not be registered after PreRender.My Master_Page...

[Code]....

My .aspx page (Content_Page)...

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I had done the above methods based on other posts but it still does not resolve the issue. I must be missing something simple,

We have used Ajax toolkit combo box in one of our application. We have used two Ajax toolkit combo box in an aspx page. Both combo boxes are populated while loading the page. Combo box 1 has list of items and based on combo 1 selection, combo box 2 is populated. This requirement is implemented within the updatepanel and only partial page rendering is done on combo box 1 selection.

This is working fine when the list of items are populated at the time of page load.

We have provided an option to add new item in combo box 1 and combo box 2. When new item is added in combo box 1, it calls iteminserted event. Since it is a new item, it does not have corresponding items in combo box 2. When we add new item in combo box 2 it submits the page (partial rendering). While it gets submitted it throws following JScript error.

"Microsoft JScript runtime error:

Sys.WebForms.PageRequestManagerServerErrorException: '<combo box id>' has a SelectedIndex which is invalid because it does not exist in the list of items.

Problem:This problem occurs only in one client machine running IE8. I believe that it is a configuration/component problem because I also running IE8 and it works fine. Following error message pop up every time when the button is click inside the update panel.It occurs once I try to click a button inside the updatePanel. Controls inside updatePanel disappears, and the updateProgress keep running.

I tried so many solutions including following

Changing the Web.config with "~/scriptResource.axd" There is no timer control from AjaxControlToolkit on the page. I have checked modified dates, which are correct on the AJAX Control Tool Kit assemblies as accepted.if (typeof(Sys) !== 'undefined') Sys.Application.notifyScriptLoaded(); I have tried many other options with out any luck.Looks like the required ScriptResource.axd file is not getting loaded on that particular client machine due to some reason, which i can not find out. This problem occurs only in one client machine running IE8, that's making testing problematic for me.

My Configuration includes the following .NET Frame Work 2.0 with AJAX Control Tool Kit Library (1.0.61025)

In my web application, I have used AJAX Toolkit and my .net version is 3.5. When I run the application and save the page, so many ScriptResource.axd and WebResource.axd generate which makes the file size 200 to 300 KB more big. After doing the same procedures mentioned in the above link, it was working fine as all ScriptResource.axd and WebResource.axd file is removed.

But when I go from one page to another page using on click, then Object Expected Error comes and when I debug it,I found one ScriptResource.axd file containing query string like .axd?d=-bA.like this and Request. GetResponse cannot find the file and it gives 404 errror (File Not Found).

I am developing an ASP.NET application that prints multiple images.I have a gridview with some data that I use to query the database for the image path.If the image is in one table, the document is sent to the printer, if not, I search another table for the document.When a run the application on my devel machine everything works fine, but when it runs from the production machine and it needs to search the image from the second table

Iam using v2 2008.I have 2 gridviews in update panel and one updateProgress control above updatepanel.First grid contains users and second grid contains module names and 2 checkbox columns ,also i have a submit button.

I will select users in first grid that select one ow at time then accordingly second grid will be displayed with permissions ticked in checkboxes,i can also deselect them and save into database

My issue here when am selecting users in first grid and permissions are checked in second grid and i deselect or select according to my requirement.When am doing this process for different users in the grid for 2 -3 times it works good but for the 5 th time get this exception

Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument.Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation

so i have registered callback or post back data for validation even then am getting this exception.do u want any other code related to grid as i have posted only some of the code which relates exception

My website is looking in the wrong place for the scriptresource.axd and webresource.axd. How do I point it at the correct subfolder? Or how do I set it so that scriptresource.axd and webresource.axd are stored in the root of the website?All the ajax is done within subfolders. The web.config is at the root of the website.